8 Roaming and Call Forwarding Concerns – 1 of 3OR on LCF depends on Ericsson nodes at both sidesThus not applicable when different Core vendors are involved:National Roaming (i.e. TA – Oi)International RoamingANATEL Regulation 316, art. 29 and paragraph 6o mentions explicitly that Voice Mail access shall not be considered as Call Forwarding. Possible solutions:TA pays the Long Distance International leg of the call to VMS (absolutely not suggested)Ericsson optional feature that blocks Call Forwarding services of the users roaming internationally.

10 Use (Mobile Originating)Roaming and Call Forwarding Concerns – 3 of 3OSB – Operator Specific Barring Blocking outside HLRIn the GSM standard OSB is not sent outside HPLMNIn Brazil TIM and Oi sends OSB also to each others and therefore also to TA!Be aware of roaming subscribers and the use of OSBCategoryUse (Mobile Originating)OSB1Blocking of Long Distance CallsOSB2-OSB3OSB4(VPN ATS, by Claro)